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New Syntheses of Caffeine and Theophylline*

✍ Scribed by Bobranski, Boguslaw ;Synowiedski, Zdzislaw

Publisher
Elsevier
Year
1948
Weight
261 KB
Volume
37
Category
Article
ISSN
0095-9553

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## Abstract Several easy preparative scale (0.5–1.5 g) syntheses of deuterium labelled caffeine, theophylline and theobromine are described. Some new selective syntheses of theophylline and theobromine have been developed. Labelled xanthines are of great interest in qualitative or quantitative isot